STARTOP Deluxe Pre Cut Walker Tennis Ball Glides - Walkers Legs Universal Precut Glide Balls, Accessories Gifts for Elderly Seniors or Medical Rehab (Yellow)Brand: STARTOP Color: Yellow Features: IMPROVES WALKER GLIDE MOBILITY for any senior or movement challenged person over time. Startop Walker Balls use real tennis balls with premium grade felt, which glides optimally over doorways, sidewalks and carpets where other coasters get stuck. PRE CUT STAR TOP OPENING for and UNIQUELY SECURE FIT why risk injury or waste time cutting old balls. Our specially engineered cut pattern allows for much a better fit